112945
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Fumed silica (CAS number 112945-52-5), also known as fumed silica because it is produced in a flame, consisting of tiny droplets of amorphous silica that fuse into branched Chain, chain-like, three-dimensional secondary particles, and then agglomerate into tertiary particles. The resulting powder has very low bulk density and high surface area. When used as a thickener or reinforcing filler, its three-dimensional structure leads to increased viscosity, thixotropic behavior. It is an amorphous silica product, the primary particle size is between 740nm, the aggregate size is about 200-500nm, the specific surface area is 100400m2/g, the purity is high, and the SiO2 content is not less than 99.8%. The untreated fumed silica aggregates contain a variety of silanol groups.
Fumed silica (CAS number 112945-52-5), also known as pyrogenic silica because it is produced in a flame, consists of microscopic droplets of amorphous silica fused into branched, chainlike, three-dimensional secondary particles which then agglomerate into tertiary particles. The resulting powder has an extremely low bulk density and high surface area. Its three-dimensional structure results in viscosity-increasing, thixotropic behavior when used as a thickener or reinforcing filler.[1]
Article Source: Involvement of the Kynurenine Pathway in Human Glioma Pathophysiology Adams S,Teo C,McDonald KL,Zinger A,Bustamante S, et al. (2014) Involvement of the Kynurenine Pathway in Human Glioma Pathophysiology.PLOS ONE 9(11): e112945. 59ce067264